ἀμείνω δ' αἴσιμα πάντα (Odyssey VII.310 / XV.71) → all things are better in moderation
purifying: P. and V. καθαρμός, ὁ, λύσις, ἡ, P. κάθαρσις, ἡ.
in medical sense: P. κάθαρσις, ἡ.